Abstract
The effect of gray scale in writing-beam intensity on the recorded refractive-index modulation is investigated by using both scheduled and incremental recording dynamics for volume holographic multiplexing in photorefractive materials. The refractive-index modulation of gratings obtained with scheduled recording is found to depend generally on the writing-beam gray scale, causing the distortion of the stored gray-scale information. In contrast, holograms multiplexed with incremental recording support high fidelity in gray-scale information storage. Theoretical predictions are verified by experimental results.
© 1993 Optical Society of America
Full Article | PDF ArticleMore Like This
Shiquan Tao, Bin Tang, Yan Zhou, and Lanson Shen
Appl. Opt. 38(17) 3767-3777 (1999)
Anthony Kewitsch, Mordechai Segev, Amnon Yariv, and Ratnakar R. Neurgaonkar
Opt. Lett. 18(7) 534-536 (1993)
Joseph Rosen, Mordechai Segev, Amnon Yariv, and Jacob Barhen
Opt. Lett. 18(21) 1858-1860 (1993)